
ul{
    list-style: none;
}
.swiper-container{
    position: relative;
    width: 800px;
    height: 300px;
    margin: 50px auto;
    overflow: hidden;
}
.swiper-wrapper{
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    width: 500%;
    height: 100%;
}
.swiper-slide{
    width: 20%;
    height: 100%;
    flex-shrink: 0;
}
.swiper-slide>img{
    width: 100%;
    height: 100%;
}
.arrow{
    position: absolute;
    top: 150px;
    right: 0;
    width: 50px;
    height: 100px;
    margin-top: -50px;
    font-size: 25px;
    line-height: 100px;
    text-align: center;
    color: #fff;
    background-color: rgba(0, 0, 0, .5);
    cursor: pointer;
}
.arrow.arrow-l{
    left: 0;
}
.dotts{
    position: absolute;
    display: flex;
    bottom: 20px;
    left: 400px;
    transform: translate(-50%);
}
.dotts .dott{
    width: 15px;
    height: 15px;
    margin-left: 10px;
    border-radius: 50%;
    background-color: skyblue;
    cursor: pointer;
}
.dotts .active{
    background-color: tomato;
}